Unfortunately, broken file seems not to be the cause.I downloaded image from one of the mirrors and compared its md5-sum with the image I already had. The sum is the same, so every bit of these images matches.

Had the same problem, but you can fix that by allowing SETUP.EXE (found in LBAHQ Custom image) in Windows Data Execution Prevention (DEP)How to find Windows DEP : http://farm1.staticflickr.com/47/163306123_8aeb256b35.jpg (http://farm1.staticflickr.com/47/163306123_8aeb256b35.jpg)Works even if using .iso with UltraISO/DaemonTools (Emulation).